diff --git a/backend/extensions/Squidex.Extensions/Text/ElasticSearch/ElasticSearchClient.cs b/backend/extensions/Squidex.Extensions/Text/ElasticSearch/ElasticSearchClient.cs
index 55692f38c..2987e7513 100644
--- a/backend/extensions/Squidex.Extensions/Text/ElasticSearch/ElasticSearchClient.cs
+++ b/backend/extensions/Squidex.Extensions/Text/ElasticSearch/ElasticSearchClient.cs
@@ -9,7 +9,7 @@ using Elasticsearch.Net;
 
 namespace Squidex.Extensions.Text.ElasticSearch
 {
-    internal class ElasticSearchClient : IElasticSearchClient
+    public sealed class ElasticSearchClient : IElasticSearchClient
     {
         private readonly IElasticLowLevelClient elasticSearch;